Switching between included colors for our themes is now quick and easy. In fact you can change the color without having to touch any css or html files. To do this, we utilize the Customize Theme feature in concrete5.
All you need to do is to go to "Pages and Themes" in the dashboard and click on the "Customize" button next to the theme. Then click where it says 'Add Your CSS' and add the following line in the popup box '@import url(css/color-name.css);' and then make sure that you click "ok" on the popup box, and then press the "Save" button to make the changes.